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Co-Authors
- Harsh Gupta
- D. Shashidhar
- Metilda Pereira
- N. Purnachandh Roa
- M. Kousalya
- H. V. S. Satyanarayana
- R. T. Babu Naik
- V. P. Dimri
- N. Purnachandra Rao
- D. Nagesh
- V. P. Dlmri
- K. Mallika
- D. Srinagesh
- R. T. B. Naik
- B. Naresh
- P. Solomon Raju
- G. Suresh
- A. N. S. Sarma
- R. Vijaya Ragavan
- Prantik Mandal
- R. Vijaya Raghavan
- Sandeep Gupta
- D. Srinivas
- M. Sekhar
- K. Sivaram
- Sudesh Kumar
- Y. V. V. S. B. Murthy
- N. K. Borah
- B. N. V. Prasad
- V. M. Tiwari
Journals
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Saha, Satish
- A New Zone of Seismic Activity at Koyna, India
Abstract Views :209 |
PDF Views:3
Authors
Harsh Gupta
1,
D. Shashidhar
1,
Metilda Pereira
1,
N. Purnachandh Roa
1,
M. Kousalya
1,
H. V. S. Satyanarayana
1,
Satish Saha
1,
R. T. Babu Naik
1,
V. P. Dimri
1
Affiliations
1 National Geophysical Research Institute, Uppal Road, Hyderabad -500007, IN
1 National Geophysical Research Institute, Uppal Road, Hyderabad -500007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 6 (2007), Pagination: 1145-1146Abstract
No Abstract.- Short Term forecast for an M~4 Earthquake at Koyna, India
Abstract Views :169 |
PDF Views:126
Authors
Harsh Gupta
1,
D. Shashidhar
1,
Metilda Pereira
1,
N. Purnachandra Rao
1,
D. Nagesh
1,
H. V. S. Satyanarayana
1,
Satish Saha
1,
R. T. Babu Naik
1,
V. P. Dlmri
1
Affiliations
1 National Geophysical Research Institute, Uppal Road, Hyderabad-500 007, IN
1 National Geophysical Research Institute, Uppal Road, Hyderabad-500 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 70, No 6 (2007), Pagination: 1091-1091Abstract
No Abstract.- Short Term Earthquake Forecasts at Koyna, India
Abstract Views :207 |
PDF Views:0
Authors
Harsh Gupta
1,
D. Shashidhar
2,
K. Mallika
2,
N. Purnachandra Rao
2,
D. Srinagesh
2,
H. V. S. Satyanarayana
2,
Satish Saha
2,
R. T. B. Naik
2
Affiliations
1 National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, IN
2 National Geophysical Research Institute (CSIR), Uppal Road, Hyderabad - 500 007, IN
1 National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, IN
2 National Geophysical Research Institute (CSIR), Uppal Road, Hyderabad - 500 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 1 (2011), Pagination: 5-11Abstract
Earthquake activity is monitored in real time at the Koyna reservoir in western India, beginning from August 2005 and successful short term forecasts have been made of M ∼ 4 earthquakes. The basis of these forecasts is the observation of nucleation that precedes such earthquakes. Here we report that a total of 29 earthquakes in the magnitude range of 3.5 to 5.1 occurred in the region during the period of August 2005 through May 2010. These earthquakes could broadly be put in three zones. Zone-A has been most active accounting for 18 earthquakes, while 5 earthquakes in Zone-B and 6 in Zone-C have occurred. Earthquakes in Zone-A are preceded by well defined nucleation, while it is not the case with zones B and C. This indicates the complexity of the earthquakes processes and the fact that even in a small seismically active area of only 20 km x 30 km earthquake forecast is difficult.Keywords
Earthquake, Nucleation, Forecast, Koyna Reservoir, Maharashtra.- Recent Microseismicity in Nellore District of Andhra Pradesh
Abstract Views :219 |
PDF Views:85
Authors
B. Naresh
1,
P. Solomon Raju
1,
G. Suresh
1,
A. N. S. Sarma
1,
R. Vijaya Ragavan
1,
Satish Saha
1,
D. Srinagesh
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 115, No 7 (2018), Pagination: 1247-1249Abstract
The Nellore district in the Southeastern part of Andhra Pradesh is one of the nine coastal districts of the state. The microtremor activity in the district started in October 2015 and continued up to July 2016. During this period, a few hundred tremors were recorded by the temporary seismic network installed locally by the CSIR-NGRI. Apart from the data recorded by this network, those from the semipermanent seismic stations at Racherla, Addanki, Cuddapah, Srikalahasti and Srisailam were used in the study1.References
- Srinagesh, D. et al., J. Geol. Soc. India, 2015, 85, 419-430.
- Ramam, P. K. and Murthy, V. N., Geol. Soc. India, 1997, 245.
- Saha, D., Gondwana Res., 2002, 5, 701— 719.
- Kaila, K. L. et al., J. Geol. Soc. India, 1979, 20, 307-333.
- Saha, D., J. Asian. Earth Sci., 2011, 42, 158-175.
- Upadhyay, D., Precambrian Res., 2008, 162, 59-69.
- Vijaya Kumar, K., Ernst, W. G., Leelanandam, C., Wooden, J. L. and Grove, M. J., Tectonophysics, 2010, 487, 22-32.
- Dharma Rao, C. V., Santosh, M. and Yuan-Bao, W., Gondwana Res., 2011, 19, 384-401.
- Ratnakar, J. and Leelanandam, C., Geol. Soc. India, Mem., 1989, 15, 145-176.
- Chandrakala, K., Mall, D. M., Dipankar Sarkar and Pandey, O. P., Precambrian Res., 2013, 231, 277-289.
- Srinagesh, D. et al., Curr. Sci., 2012, 103, 366-369.
- Nagaraju, J. and Chetty, T. R. K., J. Indian Geophys. Union, 2014, 18, 165-182.
- Lermo, J. and Chavez-Garcia, F. J., Bull. Seismol. Soc. Am., 1993, 83(5), 1574-1594.
- Vasudevan, D. and Rao, T. M., Indian Miner., 1975, 16, 43-47.
- Digital Seismic Network:To Map Himalayan Orogen and Seismic Hazard
Abstract Views :275 |
PDF Views:73
Authors
D. Srinagesh
1,
Prantik Mandal
1,
R. Vijaya Raghavan
1,
Sandeep Gupta
1,
G. Suresh
1,
D. Srinivas
1,
Satish Saha
1,
M. Sekhar
1,
K. Sivaram
1,
Sudesh Kumar
1,
P. Solomon Raju
1,
A. N. S. Sarma
1,
Y. V. V. S. B. Murthy
1,
N. K. Borah
1,
B. Naresh
1,
B. N. V. Prasad
1,
V. M. Tiwari
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 116, No 4 (2019), Pagination: 518-519Abstract
According to the Gutenberg–Richter law1, at least one earthquake of magnitude greater than 7 occurs every month along the seismically active belts in the world. Earthquakes are the manifestation of fault slip at depths, thus, there is no direct method to measure or observe them. However, seismometers can record ground velocity or acceleration caused by the occurrence of an earthquake when a fault slip occurs at depth. Therefore, setting up a seismic network is inevitable to understand the physics of earthquake processes, thereby, mitigating earthquake hazard.References
- Gutenberg, B. and Richter, C. F., Ann. Geofis., 1956, 9, 1–15.
- Ambraseys, N. N. and Jackson, D., Curr. Sci., 2003, 84, 570–582.
- Gupta, H. and Gahalaut, V. K., Gondwana Res., 2014, 25, 204–213.
- Ader, T. et al., J. Geophys. Res., 2012, 117, 23–40.
- Bilham, R., Nature Geosci., 2015, 8, 582– 584.